I use Lastpass to manage my passwords. I have always accessed the Lastpass facility via the Lastpass Extension. However it's just stopped functioning (in the last week). I click on the extension (top right of my browser screen). It invites me to click on 'Vault'. But when I do, It takes me to an empty Lastpass page. (See screenshot, attached.) When I use this same approach using Google Chrome - no problem. So the problem seems to be with the Firefox platform.